Chimney-cap.



A. F. LIESKE.

CHIMNEY GAP.

APPLIGATION FILED APR. 3, 1911.

1,029,072. 4 I Patented June 11,1912.

E-zq-L- P=q-z awe/whom All mam UNITED STATES PATENT OFFICE.

ALVIN F. LIESKE, 0F HENDERSON, MINNESOTA.

CHIMNEY-CAP- Specification of Letters Patent. Patented J 11116 11, 1912Application filed April 3, 1911. Serial No. 618,596.

the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in chimneycowls or caps and has for its object to provide a device of thischaracter so formed that the same may be readily and easily placed inits proper position, and will greatly aid the draft by its peculiarconstruction, and will at the same time allow the smoke and gas toescape.

A further object of the invention is to provide a device of thischaracter which will prevent any possibility of snow, sleet or rain fromentering the same.

In the drawing :-Figure l is a side elevation of the device. Fig. 2 is avertical sectional view. Fig. 3 is a top plan view of the cap Referringto the drawing, the numeral 1 designates a collar and by which the capis fastened to a chimney or stack, said collar having its upper end 2flared outwardly. Arranged directly above the flared end of the collar 1is a truncated cone member 3, said member being supported by braces 4,said braces being soldered or otherwise suitably secured to the outerface of the flared portion 2 of the collar 1, and likewise secured tothe inner wall of the truncated cone member 3. The lower edge of thetruncated cone member 3 is so arranged that the same will assume aposition slightly beyond the upper edge of the flared portion 2, saidedges being spaced a sufficient distance apart to allow air from theoutside to be directed therebetween.

A band 5 encircles the truncated conemember and flared edges of thecollar, said band being spaced from said member and edges and issupported by bars 6 having their outer ends fastened to the band andtheir inner ends to the cone member. A circular top 7 is arranged abovethe truncated cone member 3, and is supported thereon by bars 8, saidtop being of greater diameter than the upper end of the cone member 3and is provided with a downwardly curved flange 9, said top acting toprevent rain, sleet or the like from entering the top, but allowing thesame to drip upon the outer wall of the truncated cone member 3 and fromthence to the roof.

From the foregoing it will be seen that I have constructed a device ofthis character which will assure a perfect draft to the chimney and onein which smoke and gases are greatly facilitated in their egress byoutside air passing between the band 5 and cone member 8 and flared end2. It will be noted that from this construction a certain amount of theoutside air will pass between the flared end 2 and lower edge of thecone member 3, thereby creating a draft within the cone member andcausing the discharge of smoke and gas therefrom.

What is claimed, is

The combination in a device such as described with asleeve provided atits upper end with an integral flared extension, a truncated conical caparranged above the sleeve and having its lesser diameter smaller thanthe diameter of the sleeve, and its greater diameter larger than thediameter of the flared eX- tension, straps connecting the truncatedconical cap upon the flared extension of the sleeve, a plate located inspaced relation above the cap, a .depending flange formed upon theperiphery of the plate, the diameter of the said plate being of greaterdiameter than the minor of the cap and of a less .diameter than themajor end thereof, straps secured to the cap and engaging said plate inspaced relation to the flange formed thereon, off-set extensionsprovided upon the straps and engaging the flange, and a ring secured tothe cap and extending in spaced relation thereto and having its endsequally distant from the opposite sides of the space between the flaredend of the sleeve and the major end of the cap, substantially as and forthe purposes set forth.

In testimony whereof, I aflix my signature, in presence of twowitnesses.

ALVIN F. LIESKE.

Witnesses:

THEODORE H. SOHWANETT, FLoRENz SEEMANN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

